JPH0425486B2 - - Google Patents

Info

Publication number
JPH0425486B2
JPH0425486B2 JP57500689A JP50068982A JPH0425486B2 JP H0425486 B2 JPH0425486 B2 JP H0425486B2 JP 57500689 A JP57500689 A JP 57500689A JP 50068982 A JP50068982 A JP 50068982A JP H0425486 B2 JPH0425486 B2 JP H0425486B2
Authority
JP
Japan
Prior art keywords
racket
lever
frame
substrate
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP57500689A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58500380A (ja
Inventor
Ururitsuhi Uaitoman
Hansu Rudorufu Ueebaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAITOMAN URURITSUHI
Original Assignee
BAITOMAN URURITSUHI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4222699&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH0425486(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BAITOMAN URURITSUHI filed Critical BAITOMAN URURITSUHI
Publication of JPS58500380A publication Critical patent/JPS58500380A/ja
Publication of JPH0425486B2 publication Critical patent/JPH0425486B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/06—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using mechanical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0078—Testing material properties on manufactured objects
    • G01N33/008—Sport articles, e.g. balls, skis or rackets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
JP57500689A 1981-03-23 1982-03-04 テニスラケツトの検査装置 Granted JPS58500380A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH196381A CH638994A5 (de) 1981-03-23 1981-03-23 Pruefgeraet fuer tennisschlaeger.
CH1963/81-0 1981-03-23

Publications (2)

Publication Number Publication Date
JPS58500380A JPS58500380A (ja) 1983-03-10
JPH0425486B2 true JPH0425486B2 (enrdf_load_stackoverflow) 1992-05-01

Family

ID=4222699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57500689A Granted JPS58500380A (ja) 1981-03-23 1982-03-04 テニスラケツトの検査装置

Country Status (7)

Country Link
US (1) US4488444A (enrdf_load_stackoverflow)
EP (1) EP0074359B1 (enrdf_load_stackoverflow)
JP (1) JPS58500380A (enrdf_load_stackoverflow)
AU (1) AU558731B2 (enrdf_load_stackoverflow)
CH (1) CH638994A5 (enrdf_load_stackoverflow)
DE (1) DE3261804D1 (enrdf_load_stackoverflow)
WO (1) WO1982003274A1 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002792A1 (fr) * 1982-12-31 1984-07-19 Maigret Jean Pierre Baguette d'archet en resine renforcee pour instruments a cordes
US4747314A (en) * 1986-11-13 1988-05-31 Huang Ben T Racket tester
US4794805A (en) * 1987-05-04 1989-01-03 Carney William P Tennis racket string tension tester
DE3817485A1 (de) * 1988-05-21 1989-11-30 Pavel Kratochvil Messverfahren zur messung von gewichts- oder/und hebelkraft bei tennisschlaegern, messgeraet und schlaegerklassifizierung
DE3842434A1 (de) * 1988-06-04 1989-12-07 Gerlach Thomas K Verfahren und schaffung von vergleichsgroessen fuer das verhalten unterschiedlicher tennisschlaeger
DE4410318C2 (de) * 1994-03-25 1999-05-20 Gerold Anderka Verfahren und Prüfgerät zur Messung der Spannung in Saiten von Tennis-, Squash- und Badminton-Schlägern
DE19521517C1 (de) * 1995-06-13 1996-10-24 Julius Moench Verfahren und Vorrichtung zum Bespannen eines Schlägers mit Saiten
US6132326A (en) * 1997-09-23 2000-10-17 Jay Schweid, Inc. Sports implement customizing system
US7089802B2 (en) * 2003-09-05 2006-08-15 The Boeing Company Method and apparatus for determining hydrogen embrittlement
US6918306B1 (en) * 2003-09-08 2005-07-19 The United States Of America As Represented By The Secretary Of The Navy Adjustable flexure loading apparatus for testing long span beams
CN101688818B (zh) * 2007-04-25 2012-04-25 藤仓复合美国股份有限公司 杆身试验方法及装置
CN103543072B (zh) * 2013-10-17 2016-08-17 安徽翰文运动用品有限公司 一种网羽球拍Si变形值检测装置
CN105388064B (zh) * 2015-10-29 2017-11-03 东南大学 网球拍拍弦静态刚度测量装置及方法
RU2662054C1 (ru) * 2017-10-25 2018-07-23 Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") Устройство для крепления композиционных стрингерных панелей
US11607589B1 (en) 2020-10-01 2023-03-21 Mark E. Van Denend Device for accurately measuring string bed stiffness in a racket

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR567476A (fr) * 1923-06-15 1924-03-03 Appareil à mesurer la tension du cordage des raquettes de tennis
CH131380A (fr) * 1928-04-18 1929-02-15 Leonard Jackson William Henry Appareil pour mesurer la longueur des manches de raquettes de tennis, par rapport au point d'équilibre de la raquette.
GB381729A (en) * 1931-10-20 1932-10-13 Charles Wendell Bleby An improved apparatus for measuring the balance or leverage weights of tennis rackets and other sporting implements
US2299722A (en) * 1939-08-07 1942-10-27 Spalding A G & Bros Inc Method and apparatus for straining, bending, and vibration-detecting tests
DE2916735C2 (de) * 1979-04-25 1984-06-07 Richard 7601 Willstätt Hahn Prüfgerät zum Prüfen der Bespannungshärte von Tennisschlägerbespannungen

Also Published As

Publication number Publication date
US4488444A (en) 1984-12-18
JPS58500380A (ja) 1983-03-10
AU8144782A (en) 1982-10-06
EP0074359A1 (de) 1983-03-23
WO1982003274A1 (en) 1982-09-30
EP0074359B1 (de) 1985-01-09
AU558731B2 (en) 1987-02-05
DE3261804D1 (en) 1985-02-21
CH638994A5 (de) 1983-10-31

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